eChapters

Types of Biomedical Waste

1. Infectious waste: waste contaminated with blood and other bodily fluids (e.g. from discarded diagnostic samples), cultures and stocks of infectious agents from laboratory work (e.g. waste from autopsies and infected animals from laboratories), or waste from patients with infections (e.g. swabs, bandages and disposable medical devices)

2. Pathological waste: human tissues, organs or fluids, body parts and contaminated animal dead bodies

Insecticide based plant protection in India as well as in the world resulted in wide variety of environmental and health issues. Insecticides although gave satisfactory control of target pests initially, have posed serious issues such as resistance, resurgence and residue and also contamination of water bodies, food chain leading serious ill effects in humans, mammals, soil beneficial microbiota etc. After thorough examination of scientific evidences and facts on ill effects of synthetic organic insecticides, much emphasis was given for biological control including parasitoids, predators, entomopathogens, biopesticides, microbial control etc. in order to overcome above ill effects.

Horticulture, the branch of agriculture that deals with the art, science, technology, and business of cultivating plants, plays a vital role in food security, nutrition, and economic development globally. This diverse sector encompasses a wide array of activities, broadly categorized into:
• Pomology: The cultivation of fruits and nuts.
• Olericulture: The cultivation of vegetables.
• Floriculture: The cultivation of ornamental flowering plants.
• Landscape Horticulture: The design, construction, and maintenance of landscapes.
• Post-harvest Handling: The management of horticultural produce after harvest to maintain quality and reduce losses.
Each of these components is intricately linked with weather conditions, making the horticulture sector highly vulnerable to climate change.

Introduction

Climate change and agriculture are interrelated issues, both of which take place on a global scale. Global warming is projected to have significant impacts on conditions affecting agriculture, including fluctuation of temperature, carbon dioxide, glacial run-off, precipitation and the interaction of these factors (Sehgal et al., 2006; Kalra et al., 2008). These conditions determine the carrying capacity of the biosphere to produce enough food for the human population and for domesticated animals. The overall effect of climate change on agriculture will depend on the balance of these effects. Assessment of the effects of global climate changes on agriculture might help to properly anticipate and adapt farming to maximize agricultural production. Droughts, which have frequented different parts of India through the history, have been responsible for many famines, rural poverty and migration despite development of impressive irrigation potentials. Similarly, abnormal temperatures, high velocity winds and humidity during critical stages are known to significantly affect crop growth and development, pest incidences and epidemics, demand on irrigation resources and finally food production. Over the past few decades, the main-induced changes in the climate of the earth due to multifarious human activities linked to develop have become the focus of scientific and social attention. The predicted changes to agriculture vary greatly by region and crop. Findings for wheat and rice are reported here: The study found that increase in temperature (by about 2 ºC) reduces potential grain yield in most places. Regions with higher potential productivity (such as northern India) were relatively less impacted by climate change than areas with lower potential productivity (the reduction in yields was much smaller). Climate change is also predicted to lead to boundary changes in areas suitable for growing certain crops. (Kalra et al., 2002-2003). Reduction in yields as a result of climate change is predicted to be more pronounced for rainfed crops (as opposed to irrigated crops) and under limited water supply situations because there are no coping mechanisms for rainfall variability. The difference in yield is influenced by baseline climate. In sub-tropical environments, the decrease in potential wheat yield ranged from 1.5 to 5.8%, while in tropical areas the decrease was relatively higher, suggesting that warmer regions can expect greater crop losses.

Global warming has become a worldwide concern after feeling the rise of temperature much more clearly after 1990. Global warming has negatively affected agricultural production throughout the world attributed by the climate change parameters. Effects of climate change on horticultural crops reported nowadays include problems of biotic and abiotic stress, yield loss, quality loss, etc. To understand the impact of climate change problems in horticulture, it is prerequisite to comprehend the issues related to global carbon cycle, climate change phenomenon, relationship between climate change variables and direct as well as indirect climate change effects.

Agriculture is dependent directly on weather and indirectly on the consequences of climate change. Changes in temperature, precipitation, incoming solar radiation and CO2 concentration are expected to impact crop growth to a greater extent. The overall impact of climate change on worldwide food production is considered to be low to moderate only when there is successful adaptation strategies towards climate change (IPCC, 1998). Global agricultural production could be benefited by the doubling CO2 concentration. All sectors including agriculture will be impacted by the adverse effect of climate change imposed on water resources (Gautam and Kumar, 2007; Gautam, 2009). India is expected to face more seasonal variation in temperature with more warming in the winters than summers (Christensen et al., 2007; Cruz et al., 2007). The frequency of drought occurrence is increasing due to variations in the monsoonal rainfall. Climate change is posing a great threat to agriculture and food security. Water is the most critical agricultural input in India, as 55% of the total cultivated areas do not have irrigation facilities.

Even with the variations in climate conditions, food accessibility for the present generation is assured, but as far as the future is concerned there is still the uncertainity of agricultural production. All climate models predict that there will be more extreme weather conditions, with more droughts, heavy rainfall and storms in agricultural production regions. Such extreme weather events will inf luence pest and disease occurance, imposing severe risks of crop failure. In India, climate change could be a potential threat towards food security due to population growth, industrialization and economic development. India’s climate could become warmer under conditions of increased atmospheric carbon dioxide.

Abstract

Aquaculture is facing the serious effects of climate change in the form of scarcity of water and shift in dissolved oxygen level leading to outbreak of diseases. In a study conducted in Farm facilities of ICAR, Tripura it was seen that rise in temperature do have significant effect on hematological and biochemical parameters of fish which are basic index of good health of any organism. Many different diseases occur in the farmers’ pond and which can be controlled. So some basic diseases and their controlling strategies have been pointed out that can lead to better management of fish diseases in pond condition.

Introduction

Climate change refers to change of weather variables over a long period of time. The Inter-Governmental Panel on Climate Change (IPCC) defined climate change as a “change in the state of the climate that can be identified by changes in the mean and/or the variability of its properties and that persists for an extended period, typically decades or longer”. This may occur due to natural variability or as a result of human activity. The change may be in the form of magnitude or variability of a single or multiple weather variables or weather phenomena. Global shift in temperature and precipitation pattern as well as increasing frequency of extreme weather events are consequence of climate change which is perceived over several decades. Climate change is indeed increasingly recognized as a considerable risk to agriculture particularly with respect to direct impact on crop production and yield stability (Barzman, 2015).

Effect of Climate Change in Global Warming and Greenhouse Gases

Global warming as the resultant of climate change has become an issue of serious concern worldwide for existence of life on the earth. Over past hundred years, the global temperature has increased by 0.8⁰C and is expected to reach 1.1-5.4⁰C by the end of next century. Major factors affecting the global warming and the climate change is the concentration of greenhouse gases like carbon dioxide, methane and nitrous oxide. On the other hand, CO₂ concentration in the atmosphere has increased drastically from 280 ppm to 370 ppm and is likely to be doubled in 2100 (IPCC, 2007).

10.1 Introduction

The IPCC predicts the global average surface temperature to increase by 1.4 – 5.8 ^oC by 2100 with the increased atmospheric carbon dioxide (CO₂) concentration from 540-970 ppm over the same period. The atmospheric CO₂ concentration and temperature, both, showing a steep rise since last three decades and their impacts experienced across all sectors of agriculture. Serious concerns have been raised about the effects of global environmental change on community and ecosystem functioning. Climate change scenarios generated from General Circulation Models (GCM) with a doubling of atmospheric CO₂ predicted various extreme weather events viz., warming temperatures, increase in anti-cyclonic behaviour during the summer which may result in 20% increase in the precipitation, and long periods of drought between rain bearing storms.

Introduction

In the recent years, climate change emerged as the single most pressing problem globally, and accordingly received an increased attention (Berrang-Ford et al., 2011). It is evident that human activities are responsible for the climate change. Natural processes may also lead to climate variability and change. The climate change forecasts resulted from simulation models indicate that the future climate is likely to turn into more capricious nature with more occurrences of extreme events (IPCC, 2013b). Future projections according to the World Bank (2010) reveal the need of raising food production by 1.8% per annum between 2005 and 2050 due to climate change rather than 1% per annum if there were no impact of climate change. The effect of climate change can be seen on the quantity and quality of various components in the global hydrologic cycle (Milly et al., 2005; Bates et al., 2008).

In South Asia, vulnerabilities to the climate change are the largest in semi-arid and arid countries, where rainfall is concentrated over a few monsoon months, year to year variations are high, and where water resources are decreasing (Lenton, 2004). Cruz et al. (2007) indicated that climate trends and variability can be characterized by increased air temperatures, which are more pronounced during the winters compared to the summers. Across the entire Asia, both spatial and temporal variability in rainfall trends observed during the past few decades may be attributed to climate change. It is likely to happen that climate change will extend the dry season when negligible or very low flows occur, which particularly affects the water management process due to inability to rely on water storage reservoirs or groundwater resources situated at great depths (Giertz et al., 2006).

6.1 Introduction

The change in climatic factors over the years is affecting the entire ecosystem. According to Intergovernmental Panel on Climate Change (2007), the global surface temperature is predicted to increase between 1.4 and 5.8 ^oC by the year 2100. Microbial and plant metabolic processes are often dependent on environmental factors (for e.g. temperature and moisture), enzyme activity, and nutrient availability all of which are likely to be affected by climate change (IPCC, 2007). The global atmospheric concentration of carbon dioxide, an important greenhouse gas (GHG) largely responsible for global warming, has increased from a pre-industrial value of about 280 ppm to 389 ppm at present. Similarly, the global atmospheric concentration of other important GHGs like methane and nitrous oxides has also increased considerably. The increase in GHGs was 70% between 1970 and 2004.

Rising atmospheric CO₂ is able to change the physiological activities of plants and soil micro organisms which in turn control the flow of carbon (C) and nitrogen (N) in terrestrial ecosystems. The change in climatic factors also alters the beneficial plant-microbe interactions, which may be positive, negative, neutral or having variable effects. The survival and activity of microorganisms in the rhizosphere mainly depend on the flow of carbon in the root exudates. The composition of these root exudates is affected by various environmental factors such as soil type, pH, light intensity, oxygen status, soil temperature, soil moisture and nutrient availability. Diverse microbial activities pose a major challenge to predict the response of microbial community to global climate change. These changes in microbial activity have larger impacts on vital ecological processes such as nutrient cycling.

Sericulture, the art and science of silk production through silkworm rearing, is profoundly influenced by weather conditions. Optimal weather is not just beneficial; it’s often a prerequisite for successful mulberry cultivation and healthy silkworm development. Deviations from ideal conditions can lead to decreased productivity, increased disease incidence, and ultimately, economic losses for sericulturists.
20.1. Weather’s Influence on Mulberry Cultivation
Mulberry (Morus spp.) leaves are the sole food source for the most commercially important silkworm, Bombyx mori. Therefore, the health and productivity of mulberry plants are paramount. Weather parameters significantly affecting mulberry growth (Fig. 20.1) include:
Temperature: Mulberry thrives in a mean atmospheric temperature range of 24 to 28oC . While it can survive between 13.0 to 37.7oC, optimal growth and bud sprouting occur within the narrower ideal range. Temperatures outside this can stunt growth and leaf quality.
• Rainfall: An annual rainfall between 600 mm and 2500 mm is suitable for mulberry. In regions with lower rainfall, irrigation becomes essential. Consistent moisture is crucial for leaf yield and quality. Excessive rainfall can lead to waterlogging, harming the plants.

Abstract

The north eastern region of India, consisting of the eight states of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim and Tripura, has an area of 255 090 km2 with a vigorous monsoon dominated climatic and a dynamic hydro-geomorphic regimes. Endowed with a sub-tropical type of monsoonal climate, the region shows remarkable variability of weather and climate on a regional scale. It possesses about 30% of the total water resources potential and about 41 % of the total hydropower potential of India. The per capita and per hectare availability of water in this region is the highest in the country. The problems of environment degradation in the northeastern areas of India are, primarily impacted by demographic pressure, urbanization, natural disasters, soil erosion and land degradation. The region is visited by the southwest monsoons which make it one of the wettest areas in South Asia as well as highly frequented by the water induced disasters. The rapid melting of glaciers is initially expected to first contribute to excessive water flow and flooding in the region. Eventually with the full loss of glaciers, the shortage, when it comes, will likely arrive much more abruptly in time; with water systems going from plenty to want in perhaps a few decades or less.

5.1 Impact of climate change on agriculture

Climate change has both positive and negatively impact on agriculture, food security and land degradation. Climate change could exacerbate the land degradation processes by increases in rainfall intensity, drought frequency and severity, dry spells, f looding, heat stress, sea-level rise and permafrost thaw. The 1/4^th of ice-free land area in the world is prone to human-induced anthropogenic degradation (Certini and Scalenghe, 2011; Hooke et al., 2012). Soil erosion rate is 20-100 times faster than that of soil formation in agricultural field. The erosion rate is least is zero-tillage (non-disturbed field) and maximum at conventional intensive tillage practices. Climate change further exacerbates the land degradation. The permafrost areas, dry-lands, low-lying coastal regions, river deltas are more vulnerable. The occurrence of drought in dry-land was increased by around 1% per year during 1961-2013 periods. On an average 380-620 million people globally experienced desertification who lived in dry-land areas (1980s and 2000s) in South and East Asia, North Africa, Middle East, Sahara region, and Arabian peninsula. Moreover, people who are already living in degraded/ desertified regions are more negatively affected by climate change.

Specifically, the land surface air temperature has increased about twice as much as the global average temperature since the pre-industrial era. The land-surface air temperature has increased relatively higher than the world’s average surface (land and ocean) temperature since the pre-industrial era (1850-1900). The average land-surface air temperature has enhanced by 1.53°C (1.38-1.68°C), whereas, world’s surface (including land and ocean) air temperature has enhanced by 0.87°C (0.75-0.99°C). Subsequently, global warming triggered the frequency, intensity and duration of heat waves and related damage. The direct and indirect impacts of climate change on global agriculture is summarised below for an overall idea about the importance of the issues.

INTRODUCTION

Aquaculture had undergone rapid expansion and intensification in the recent past and has taken the shape of a full-fledged diversified industry. But the risk involved in aquaculture activity has also increased significantly due to the outbreak of diseases which has a devastating effect on the aquaculture crops. Fish are aquatic and poikilothermic, their existence and performance are dominated by the quality of their environment . The aquatic environment is a complex system subject to constant physical and chemical changes brought about by natural and manmade processes. Therefore, choosing the proper site to develop aquaculture facility is paramount to its success.

A disease is an abnormal condition of an organism caused by infection, inherent weakness or environmental stress; it prevents the organism from functioning normally which ultimately leads to death (Avault, 1998). In an aquatic environment, there is a profound balancing of relationship between host (fish), pathogen and the environment existing and this is the fundamental concept to disease susceptibility of fish (Snieszko, 1973). A disease organism may be present in the environment or host, but will not cause disease as long as the host has high natural resistant or the physical condition of the host is strong. Once the imbalance is created to any of the component, opportunistic pathogen invades the host resulting to the outbreak of disease.

Introduction

Our soil resource is generally taken for granted for many uses. Most people don’t realize the importance of the resource and that it is fundamental for farming/agriculture. Without high quality soils, agriculture production cannot be achieved on a sustainable basis to meet ever growing demand. Thus, conservation agricultural practices are capable of improving soil health by increasing organic carbon, aggregation, improving infiltration and minimizing erosion losses.

Introduction

The main aim of conservation agriculture is to sustain and improve the crop productivity and to provide protection against biotic and abiotic stress, while at the same time protecting and enhancing the biological activities of the soil. The essential principles of conservation agriculture are no-tillage (and direct seeding) or reduced tillage, the maintenance of a cover of live or dead vegetative mulch on the soil surface and the wise use of crop rotations. The crop sequences are planned in such a way that which will discourage the buildup of pests or diseases and will help to optimize plant nutrient use by synergy between different crops of the rotation. While deciding the crop rotation, the locally important crops should be considered and there should be deep rooted and shallow rooted crops in the sequence so that the utilization of soil nutrients is maximized. At least one leguminous crop should be there in the crop sequence. The use of plant residues influences the soil physical, chemical and biological properties by reducing surface temperature, rate of evaporation and maintaining water content, nutrient load and rate of organic matter decay. The soils under conservation agriculture are happened to be highly active and diverse biologically and can supply plant nutrients for a longer period of time because of their higher nutrient loading capacities.

Soil biodiversity comprises of all organisms whether single-cell organisms or multi-cell animals or plants that live in the soil. Soil microbial diversity includes “genetic diversity, that is the amount and distribution of genetic information within microbial species, diversity of bacterial and fungal species in microbial communities, and ecological diversity, that is variation in community structure, complexity of interactions, number of trophic levels and number of guilds (Nannipieri et al., 2003).

Introduction

The COVID-19, the Global Pandemic has affected the world and is still continuing with its various mutations even today. This has created a long-lasting impact and many sectors like energy, transport, industries, and residential buildings, have critically experienced impacts from the pandemic (Qarnain, Muthuvel, and Bathrinath 2020). It has directly and indirectly impacted every household’s operations. The mandatory COVID – 19 protocols, lockdowns, Work From Home (WFH) schedules and the major fear of every one of contracting the disease if going out itself has forced people to stay indoors and forced residents to use more energy for their daily routine activities, (routines like watching more TV, using environment control devices like fans, AC, room heaters etc.) giving rise to higher energy usage resulting in high energy bills and subsequent scarcity in the energy supply.

4.1 Introduction

Circumstantial evidences almost confirm researchers’ on early predictions of a changing climate and a warming world. The trend of changes also establishes the primary influence of increased greenhouse gas concentration on the global warming and the consequential events. The global mean surface air temperature has increased by about 0.74°C over the last 100 years. It is projected to rise 1.4 to 6.4 °C by the year 2100 (IPCC AR4, 2007). Changes will vary from region to region. Eleven of the twelve years in the period 1995-2006 rank among the top 12 warmest years in the instrumental record (since 1880). The radiative forcing of CO₂, CH₄ and N₂O is very likely (> 90% probability) increasing at a faster rate during the current era than any other time in the last 10,000 years. This is because of the increase in the global abundance of the three key greenhouse gases. The atmospheric CO₂ concentration has reached the level of 389 ppm in 2010 (WMO, 2011) from 270 ppm the pre-industrial era. In addition, global abundance of other greenhouse gases such as methane (CH₄) has increased from 700 ppb in the pre-industrial era to 1808 ppb in 2010 and in the same period, nitrous oxide (N₂O) has increased from 270 ppb to 323 ppb.

Introduction

The state of Maharashtra now again reels under the scarcity of water. Geologically, major part of the state is covered by Deccan basaltic flows. This basaltic terrain, as such, has been labelled notorious as far as the availability of groundwater is concerned. Uncertain availability of groundwater in the terrain is due to heterogeneity in the nature of piles of basaltic flows which adversely affects the geohydrological characters of the rocks.

The area understudy is unfortunately, a part of basaltic terrain in which no storage structures like major dams or medium projects have been constructed across the existing rivers. Consequently, the irrigation in the area and domestic needs of the people solely depend on whatever water is available in the existing dug wells. The wells do not suffice the need of the people because the percolation of water in the wells is not adequate in major part.

SYNOPSIS

After the break-up of the Soviet Union in 1992, the countries of Central Asia and the Caucasus (CAC) began making the transition from controlled to market economies. All of the countries have programs for economic and social development as well as food security. Over the last decade, the regional population increased 11%, from 72 million in 2002 to 79 million in 2012. Agricultural production has increased throughout the region. For example, vegetable production per decade has nearly doubled due to an increase in the area of the crops grown and to increased yields, and was more than 19 million t in 2011.

INTRODUCTION

Inspite of recent technological developments which have helped to increase agricultural production in many countries, growth of plants and animals continue to depend to a large extent on the weather conditions. Each plant has its own climatic requirements for growth and development and any large scale deviation from it exert negative influence.

Growth of plants is most sensitive to temperature just above a threshold value and near the maximum value, where growth normally stops. Therefore, periods of extreme temperature i. e. low temperatures below the threshold value and high temperatures above the maxima are hazardous to plant development and growth. Extreme temperature conditions during cold spells cause stress and frost; high temperatures lead to heat stress, and both affect agricultural production. Snow and ice storms in late spring or early autumn are very hazardous to many temperate crops.

Similarly extremes of moisture conditions namely dry desiccating winds, drought episodes and low moisture conditions as well as very humid atmospheric conditions including wet spells tend to affect agriculture. High soil moisture situations of water logging and flooding associated with heavy rainfall and tropical storms have adverse effect on plant growth and development since they influence the rate of transpiration, leaf area expansion and ultimately plant productivity. Drastic changes in rainfall variability can have very significant impact, particularly in climatically marginal zones such as arid, semi-arid and sub-humid areas where incidence of widespread drought is frequent. Dry desiccating and strong winds reduce agricultural production as a result of very high evapotranspiration rates. It also causes mechanical damage to plant with weak stems by lodging such as the sugarcane and the banana.

Abstract

During the past five decades, the role of nitrogen (N) fertilizer in augmenting foodgrain production has widely been recognized the world over. In Indian soils, N deficiency is recognized as a universal problem and its consumption has increased by more than 300 times during the last 60 years.

Background and Technology Intervention

To increase the water use efficiency coupling piped network and micro irrigation, Department of Agricultural Engineering along with the Tamil Nadu Government introduced a project on “Water conveyance works of modernization of on-farm irrigation network in 5(R) and 7(R) sluices Parambikulam Aliyar Project (PAP)” covering a total area of 109.86 acres in both the sluices.

Significance of this project is to improve the water use efficiency in canal command areas where the farmers were unable to cultivate annual / long term crop due to alternate supply of water in each zone. PAP command area has 4 zones and each zone receives water once in 135 days in a 2 year span through open channel leading farmers to adopt flood irrigation.

Introduction
Globally, the agricultural sector plays an important role in poverty reduction, food security and promotion of nutritious food (Jones & Ejeta, 2016). Although agricultural crop production is essential, there are challenges associated with plants due to pests and diseases infestation in the value chain of crop production. Plant health problems can be resolved through appropriate diagnosis and identification of plant pests affecting agricultural (Ausher et al., 1996). However, Oerke (2006) reported that 40 per cent of crop yield losses are caused by plant pests and diseases of economic importance. The majority of smallholder farmers are faced with risks associated with pests and diseases in plant production. To address challenges faced by smallholder farmers, plant health clinics are important for plant pests and disease diagnosis. The plant health clinics can be defined as a system in which farmers obtain advisory services on the plant pest problem affecting agricultural crops and provide management control strategy for pest management (Alokit et al., 2014). There are many plant health clinics initiatives within the Indian region that provides plant pests and diseases advisory services to all categories of the farmers (Boa et al., 2016). Many plant clinics in developing countries which are run by international research institutions are more efficient and effective as compared to those not run by the research institutions. This review seeks to investigate and assess the state of global plant clinics with the aim of obtaining the efficient and effective plant health clinic model for South Africa. The knowledge, awareness, availability and accessibility of basic plant healthcare to smallholder farmers for plant pests and diseases diagnosis to ensure early detection, pest management and pest reporting remain a challenge. Furthermore, there is limited literature and research on plant health clinics’ establishment and its importance to smallholder farmers in the Indian developing country.
Background of the Plant Health Clinics
To date, there are about 34 countries operating plant health clinics globally and it is estimated that there are 4,500 plant clinics across the globe Centre for Agriculture and Biosciences International (CABI), 2020; Tambo et al., 2020). These include plant clinics in Africa, South America and Asia respectively (Boa, 2009; CABI 2020). The first plant health clinics were established in 2003 in Bolivia (Bentley et al., 2009; Boa, 2009). In Africa alone, plant clinics were established with the help of CABI to assist smallholders and household to respond effectively and efficiently towards plant pests and diseases. According to Boa et al. (2016), there are two types of plant health clinics in terms of service provisions, namely (1) Fixed structure with appropriate laboratory equipment

ABSTRACT

The continuing depletion of the stratospheric ozone layer mainly due to release of man-made atmospheric pollutants such as chlorofluorocarbons (CFCs) have resulted in the increase of solar ultraviolet-B radiation (UV-B; 280-315 nm) reaching to the Earth’s surface. UV-B is a small (less than 1% of total energy) but highly active component of the solar spectrum that can penetrate to biologically significant depths in lakes, ponds, rivers and oceans. It has been demonstrated that UV-B can cause wide ranging effects including mutagenesis, destruction of proteins/enzymes, inhibition of a number of vital metabolic processes and formation of thymine dimers in DNA leading to death of a number of organisms. A number of microbes including strict photoautotrophs always grow in lighted habitats and thereby always sense and face the stress of solar UV-B radiation. Similarly, humans are also exposed to varying levels of UV-B radiation depending upon the altitudes and latitudes of the location. A wide ranging effect of UV-B such as cataracts, skin cancer, immunosupression etc. has been reported in human. Damaging effects of increased UV-B radiation has also been shown in a number of microbes. These effects include inhibition of growth and survival, decrease in photosynthetic pigments, loss of PS II and RuBISCO activity, inactivation of nitrogenase enzyme and inhibitory effects on several other metabolic processes. Among photosynthetic pigments, phycobiliproteins seem to be the primary target of action since phycobilisomes are completely disintegrated after UV-B exposure. In this contribution an attempt has been made to put in perspective the main effects of UV-B radiation on microbes and human health.

Introduction

Women in India constitute nearly half of the population. They contribute 75% to the development of our society as compared to men who only 25%. According to the census 2011, nearly 98 million women in India have agriculture jobs, but around 66.1 million of them are depended on others’ farms as agriculture labours. They are engaged largely in cotton, tea, oil seeds and vegetable production. It is also worth mentioning that from the basic level of work concerning farm related activities to unskilled farm jobs like sowing, transplanting, weeding, harvesting and post harvesting activities like winnowing, processing, storage etc. women are engaged right from the start.

Woman’s contribution to the fisheries sector is 22% according to the FAO. Food security, horticulture, sericulture, livestock production and collection of non- timber forest are some of the allied sectors in which they are involved. They are also involved in other allied sectors which include cattle management, milk and poultry farming, and fodder collection. At the same time, women’s domestic activities include cooking, child rearing water collection from the nearby and far-off places, fuel wood gathering and the overall upkeep of household. Ironically, women face disparities in terms of compensation, their share in properties and in representation in local bodies. Much of their contribution in the food production system as food producers and providers has not received effective recognition. This affects their lives and familial conditions in terms of poor health of children and low educational attainments.

Abstract

One of the major distinctive agriculture extension concepts is the Intensive Agricultural Development Village concept or Village Adoption System, where in the Extension Guides who are working at taluk level select a suitable village and disseminate the need based and innovative technologies released by the University. In this connection Extension Education Unit of University of Agricultural Sciences at Mangalore has adopted Irvathur and Renjala villages of Karkala taluk in Udupi district and several educational activities like Field Trials, Result Demonstration, FLD, Block Demonstration and Integrated Farming System Demonstrations were carried out. Training programmes were conducted on Vermiculture, Dairy farming, Paddy cultivation, Cashew demonstration, IPM on Areca nut, Coconut etc., Besides establishing Milk Producer’s Co-operative Societies in the villages, the key programme observed in the village was Vermiculture. To start with, Vermiculture was tried with one farm woman with 100 worms.

Introduction

Conservation tillage is a model of sustainable agriculture as it leads to profitable food production while protecting and even restoring natural resources. Conservation agriculture benefits farmers because it reduces production costs and increases yields, but it also has positive impacts on the whole society: enhancement of food security thanks to a better soil fertility, improvement of water quality, reduction of erosion and mitigation of climate change by increasing carbon sequestration. Conservation agriculture (CA) systems are also less sensitive to extreme climatic events and therefore contribute to the adaption of climate change and the resilience of agricultural systems. Hence, CA becomes a fundamental element of sustainable production intensification, combining high production with the provision of environmental security.

CA is based on healthy functioning of the whole agro-ecosystem with a maximum attention and focus on the soil. The soil is the entry point and it has to be considered not only as simple physical support to roots and plants, but as a living entity with its physical, chemical and biological characteristics. The focus of CA embraces not only the nutrient contents of the soil but also its biological and structural status, which are determinants of sustained productivity.

The paradigm of CA is that an undisturbed soil has the opportunity to develop and produce healthier plants. Soil life can develop in a stable habitat in quantity and quality better than on tilled soils, the structural integrity of soil is maintained, so continuous vertical macro-pores are not destroyed and remain as drainage channels for rainwater into the soils. Seeding under conditions of minimum soil disturbance is achieved by direct seeding through the mulch cover without tillage.

INTRODUCTION
Hitching and detaching implements from a tractor is a crucial aspect of tractor operation, whether in agricultural, industrial, or construction work. This process involves attaching various implements, such as plows, harrows, or trailers, to the tractor’s hitch system, ensuring proper functionality during operation, and safely detaching them once the task is completed. Mastering the correct procedures for hitching and detaching is vital for safety, operational efficiency, and preserving the tractor and implement lifespan.
The tractor hitch system plays an essential role in connecting the prime mover (tractor) to the implement, creating a cohesive working unit. Both the tractor and the implement rely on each other to perform, much like the two wheels of a cart.
A “hitch” is defined as a single articulated point or a combination of points and links that allow the tractor to exert tractive effort in the form of pushing or pulling to counteract the draft force of the implement. The hitch point, whether virtual or real, represents the specific location on the tractor through which the “line of push” must pass to ensure effective operation. Proper understanding of this system ensures smooth, safe, and efficient work.
HITCHING IMPLEMENTS TO THE TRACTOR
Hitching implements to a tractor is an essential process, and the method can vary depending on the type of implement being used. The most common method involves using two hydraulic arms and a third high point to attach and level the implement. The hydraulic arms serve as the main tie-down, allowing the implement to be raised or lowered, while the third point is connected through a double-nut bar, which can adjust the length of the tie-down. For larger tractors or implements, this third point can also be hydraulic for easier adjustment. An alternative coupling method is the cup and pin system, commonly used for trailers, balers, or tanks, where a pin is driven through the tractor’s cup and

Abstract

The upsurge in global population rates has triggered a significant escalation in food demand across the world. This is accompanied by urbanisation and a pressing need for sustainable agriculture. In this context vertical cultivation of plants as well as breeding of livestock on vertically inclined surfaces, such as in skyscrapers and other high-rise buildings in urban regions has gained prominence. The dynamics of urban agriculture is captured through the case study of Urbagrow Aquaponics, an urban, aquaponic, soil-free, food garden based in Kolkata. The garden exhibits an assortment of aquaponic systems for growing a variety of vegetables as well as the tilapia and catfish. The systems make use of less water, require less work in man-hours and can grow vegetables in greater density than a traditional soil based food growing endeavour. A feasibility study has been conducted to explore the potential of scaling such a venture across myriad other high-rise buildings across Indian cities.

The major challenge of the present time in agriculture is implementing sustainable development and meeting the food needs of increasing population simultaneously. Agricultural extension always remains an integral part of National Agricultural Policy. At present, agricultural extension has a crucial role to play in the context of growing demands of agricultural production in a sustainable manner. In this situation extension’s traditional task of transferring and disseminating appropriate technologies and agronomic practices would not be sufficient. There is need to view extension for sustainable development in an institutional strengthening context, both in functional and structural.

Agriculture plays a key role in the overall economic and social well being of the country. Though the share of Agriculture in both GDP and employment has declined overtime, Agriculture still forms the backbone and occupies a pride of place :

1. Agriculture contributes 24 per cent to the Gross Domestic Product. GDP was declined from 39 per cent in 1983 to 25 per cent during 1999-2000 and now it 17.32 per cent.
2. Provides livelihood support for more than half of the population in the country. The sector provides employment to 56.7 per cent of the India’s work force.
3. Agriculture has been the source of raw material for industries. Majority of the industries depending on agriculture for their raw materials. Ex: Textile (Cotton, Jute), Sugar (Sugarcane, Sugar beet), Small & medium scale industries like soaps, dyes, medicines, vitamins, preservation of fruits and vegetables, dhal milling, rice husking, Jaggery making, oil crushing, handlooms etc.
4. It provides large part of market for industrial goods viz., seeds, fertilizers, pesticides, implements, machines like pump sets, trucks, tractors, power tillers, sprayers etc.
5. Support roadways, railways, airways and shipways for transport of inputs & produce.

1.1. Definition

Alteration in one or more of physiological processes culminating in a loss of coordination of energy utilization in a plant as a result of the continuous irritation due to presence or absence of some factor or agent.

A plant is said to be diseased when there is a harmful deviation from normal functioning of physiological process (Federation of British Plant Pathologists, 1973).

Agriculture shapes the foundation of Indian economy and despite the fact that there has been vast industrialization in most 60 years; horticulture still occupies a place of significance. In India, approximately 20-25% of the horticulture produce goes waste due to improper post harvest operations which reduces the growers share in the present marketing arrangements. The grower is getting hardly 25-35 paisa of a consumer rupee. The Value addition activities where the fruits and vegetables are processed, that fetches higher remunerative prices of the produce. Such opportunities are presently not available in rural areas but could be created through selective mechanization of agriculture and appropriate post harvest management and value addition to the harvested biomass in the production catchments.The agricultural produce involves operations like cleaning, grading, drying, storage, milling, packaging, transport, marketing and utilization. At the end of each operation, value is added to the product. The lowest and the highest monetary values of a food commodity are, respectively, when it is in raw and fresh form and when it is in processed and ready to consume/eat form. Post harvest and food processing technology are commodity and location specific. It prevent avoidable post harvest losses and adding value to the fresh agro-produces. It also creates opportunities for employment and income generation. Integration of production agriculture with on-farm primary processing is needed to have higher and sustainable production, productivity and better quality end products for domestic and export markets. It would help in reducing rural- urban disparity and ensuring household food and nutritional security for all at an affordable cost. The technology is available and a wide range of tools, machines and equipment are used in post-production of agriculture. The globalization of trade may compel many agro processing industries to rely on an imported technology at a high cost and the advantage of such technology may be availed by a few who have an exclusive business interest. Majority of agriculture-based enterprises will continue to depend upon indigenous technology and, therefore, R&D through public support has to be strengthened to become globally competitive and serve small-scale food processing sector of the country.

Abstract
Urban farming, encompassing practices like rooftop gardening, vertical farming, hydroponics, aeroponics, and aquaponics, involves cultivating, processing, and distributing food in urban areas. With global urbanization projected to reach 60% by 2030, urban farming addresses challenges like rural youth migration, farmland fragmentation, and declining agricultural engagement (currently 49% of India’s workforce). It offers sustainable solutions by producing fresh, pesticide-free food, reducing transportation needs, and combating urban heat island effects. Techniques like hydroponics and aeroponics enable high-yield, year-round crop production in controlled environments, minimizing resource use and environmental impact. Despite high initial costs and skill requirements, urban farming creates employment, enhances food security, and supports urban environmental management, making it a viable alternative to conventional farming in India’s rapidly growing cities.
Keywords: Urban Farming, Vertical Farming, Hydroponics, Aeroponics, Aquaponics, Sustainable Agriculture, Food Security, Urbanization, Environmental Management, Agri-preneurship

Introduction

Malnutrition remains a pervasive global challenge, affecting millions of individuals across the world, particularly in low- and middle-income countries. Despite significant advancements in agriculture and food production, a large segment of the population still lacks access to essential nutrients, leading to severe health consequences and perpetuating cycles of poverty and underdevelopment (Müller and Krawinkel, 2005). Malnutrition, defined as the inadequate intake of essential nutrients required for optimal health and development, encompasses both undernutrition and over-nutrition (WHO, 2023). While undernutrition, characterized by deficiencies in energy, protein, vitamins, and minerals, remains a significant concern, over nutrition, manifesting as obesity and diet-related non-communicable diseases, is also on the rise, particularly in urban settings (Wells et al., 2020). The consequences of malnutrition are far-reaching, impacting physical growth, cognitive development, immune function, and overall well-being, with long term implications for productivity, economic prosperity, and societal stability (Saunders and Smith, 2010).

Rice, a staple food for more than half of the world’s population, plays a central role in global food security and nutrition. However, conventional rice varieties often lack sufficient levels of key nutrients, such as iron, zinc, vitamin A, and certain amino acids, leaving populations reliant on rice-based diets vulnerable to micronutrient deficiencies and associated health risks (Peña-Rosas and Mithra, 2019). Iron deficiency anaemia, zinc deficiency, and vitamin A deficiency, are among the most prevalent forms of malnutrition worldwide, particularly affecting women and children in resource-constrained settings where rice consumption is high (Dipti et al., 2012)

Introduction

Environmental Assessment is taken up in this exercise as a rapid assessment technique for determining the current status of the environment and identifying impact of critical activities on environmental parameters. EIA is a relatively new planning and decision-making tool first enshrined in the United States in the National Environmental Policy Act of 1969. It is a formal study process used to predict the environmental consequences of any development project. EIA thus ensures that the potential problems are foreseen and addressed at an early stage in project planning and design. Creation of Environmental Impact Assessment (EIA) system is vital to conform socio-economic development projects to environmental safety and thereby ensure sustainable economic development. In view of the fact that development is an ever-growing process, its impact on the environment is also ever increasing, leading to rapid deterioration in environmental conditions. As such Environmental Assessment provides a rational approach to sustainable development.

It also enables us in carrying out Environmental Cost-Benefit Analysis of projects at an initial stage. It is thus a precursor to detailed analysis of environmental impacts, which are taken up only if a need for the same is established.

Introduction

Evolution of agriculture in India has an ancient tradition of farming since beginning of human civilization. It has been referred in several ancient scripts including Vedic literature and many other ancient scriptures. Therefore, the study consists methods of cultivation, cropping pattern and status of agriculture sector in economy and in human life is essential for strengthen the agriculture sector during recent period. The agricultural sector in pre-independence India was very prone to breakdown and highly unstable. In other words, there was not stable production rate for various crops. The main reason for this was improper infrastructure for perennial irrigation, non-judicious water use, imbalance use fertilizers and manures, uncertainty and uneven distribution of rainfall throughout the year.

Importance of the farmers

Farmers, who put their labour in crop cultivation, grow crops in the land, supply food to the people generation to generation, most unprivileged and unorganized sector of their communities who used to sale labour. In ancient period, workforces were the actual owner of the land and their produce. Gradually, the farmers became paid workforce in the production system.

In the Sanskrit literature described “agriculture is a divine skill taught by sages to farmers for sustenance of life” and shows the high regard for farmers in society. The farmer was the Annadata that stands for the food provider. Farmers raised fodder for animals. Farmer planted and maintained the orchard of blessed trees after that to the village, maintained pasture land, grew herbs and medicinal plants for supply to the village physician, and fragrant flowers for worship at the temple. Farmers nurtured cattle, which gave milk and carried burdens for the community. Farmers, no doubt were the source of raw materials for all artisans and ever increasing population of the country. But farmers are often neglected, exploited, cheated and deprived from their own legitimate cash out. Farmers’ rights were slowly whittled down at first by foreign invasions, later by changes in the land ownership.

Synopsis

Food safety has become increasingly important with globalization due to various factors such as increased volume and diversity of trade in foods, greater public demand for health protection, changing hazards e.g., resistant microbes, more sophisticated methods for detection of hazards, changes in production and consumption pattern, etc. Food safety contributes significantly to food security as unsafe and poor quality food leads to illnesses as well as food wastage. This leads to a strong need to emphasize not only on availability of food but also ensure that the same is safe.

Objectives
• To understand the critical role of language and communication skills in engineering.
• To explore how communication impacts the effectiveness and efficiency of engineering work.
• To examine the types of communication skills necessary for engineers
• To highlight the significance of these skills in teamwork, leadership, and project management.
• To discuss the challenges engineers face in communication and how to overcome them.
• To encourage students to develop and enhance their communication skills for better academic and professional outcomes.
Introduction
Language and communication skills are integral to the engineering profession, often determining the success or failure of projects. Engineers are required not only to excel in their technical expertise but also to effectively convey their ideas, collaborate with diverse teams, and manage complex projects. This necessitates a high level of proficiency in both language and communication skills.

The quest for drugs from the sea has yielded a remarkable di versity of natural products mostly from invertebrates such as sponges, tunicates, bryozoans etc. These molecules are either in late stages of clinical trials or have already entered the market. There has been an increased emphasis on marine microorganisms as sources of bioactive compounds over the past decade. Marine bacteria alone constitute 10% of the total living biomass carbon of the Earth’s biosphere and they have unique metabolic and physiological capabilities to ensure their survival in diverse habitats. In the marine environment, some microorganisms associate with living and non-living surfaces and the competition amongst these microbes for space and nutrients leads to the production of bioactive secondary metabolites.

It is an established fact that there is no further scope for horizontal expansion of area under plough, as the per capita land is decreasing every year due to unabated increase in human population. Hence, the future need of food has to be met through vertical expansion i.e. more intensification of agriculture. Nearly 40 million tonnes of nutrients in the form of chemical fertilizers will have to be utilized to feed upon an estimated population of 1.5 billion by 2050 AD (Sakai, 2001). However, presently the crop productivity especially rice and wheat has stagnated not only in India but in other South Asian countries also (Mahajan and Gupta, 2009). 

Real benefits are obtained when we use a participatory approach to curriculum development and reorientation. Primarily, the course contents we provide and the learning will become more effective. If students participate actively in the learning process, then they are more likely to learn and teaching is more likely to be effective. They will have more ownership in the teaching, because their needs will have been identified and hopefully they will also be involved in deciding how their needs can be met. This will increase their motivation, which will help them to learn more effectively.

1. Seed is the key ingredient in establishment and expansion, diversification and improvement of crops/and crop husbandry.

2. Seed is the most effective and efficient means of crop propagation.

Soil testing involves an estimation of its available nutrient status i.e. the portion or amount of nutrient directly available in soil for subsequent uptake by crop plant. This exercise is commonly referred to as soil testing and is used to arrive at optimum fertilizer application ratio. The need for estimation of available nutrient arises because only a small fraction of what the soil contains is the total nutrient content of the soil. Soil test are calibrated by correlating them with crop response and the result from the basis for making fertilizer recommendations.

Estimation of nutrient contents and forms in materials that are involved in nutrient supply and dynamics is a conical step towards planning scientific nutrient management. In this content, both soil and plant testing information comes out of the interpretation of analysis assumes a greater value when their concentrations and amounts can relate to soil fertility, nutrient availability, plant growth, yield and quality of the crop produce.

Assessment of a soil’s fertility status involves an estimation of its available nutrient status i.e., the portion or amount of nutrient directly available in soil for subsequent uptake by crop plant. This exercise commonly referred to as soil testing and is used to arrive at optimum fertilizer application ratio. The need for estimation of available nutrient arises because only a small fraction of what the soil contains is the total nutrient content of the soil. Soil test is calibrated by correlating them with crop response and the result from the basis for making fertilizer recommendations.

Estimation of nutrient contents and forms in materials that are involved in nutrient supply and dynamics is a conical step towards planning scientific nutrient management. In this content, both soil and plant testing information come out of the interpretation of analysis assumes a greater value when their concentrations and amounts can relate to soil fertility, nutrient availability, plant growth, yield and quality of the crop produce.

Trichoderma is fungus is well adapted to different ecosystem and identified > 250 species for agricultural use. It is primarily used as a bio-fungicide because of the variety of secondary metabolites produced and applied mainly for biocontrol and bioremediation and growth promotion activities. Bio-control potential of Trichoderma used for the control of soil borne diseases through various mechanisms responsible for broad range of cell wall degrading enzymes, anti-microbial and organic volatile compounds produced by Trichoderma. During abiotic stress, Trichoderma play an important role in plant growth promotion through mobilization of various nutrients. Presently Trichoderma is used as an effective biocontrol agent against plant parasitic nematodes. It is also used for one of the alternate remedy for improving the quality of the soil by removing the heavy metal in agricultural field, makes them suitable for cultivation.

1. Introduction

Trichoderma is one of the genus of fungus species which belongs to Ascomycetes (Order Hypocreales) present in diverse soil ecosystems, colonise under various agro ecological niches and most of the prevalent are culturable microorganism. They are primarily used as efficient biocontrol agents against a variety of soil-borne plant diseases. However, they have also shown potential in processes like bioremediation, promoting plant growth, and managing nematode populations.